Flex II, Flex II Max (4G)
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• Weight: 9.5g, 14g

• Case Size: Dimensions 50×24×13mm, 50x24x20mm(L×W×H)

• Battery Characteristic : Internal Lithium-Ion 30mAh, 210mAh

• Solar charging system

• GPS Time Schedule: Preset by user request (from 5 minutes to 24 hours)

• Data Transmission Schedule: Preset by user request (up to 3 times/day)

• GPS-Mobile Phone based Telemetry System

• Coverage: worldwide

• Internal antennas

• Operational temperature: from -20 to +60 ℃

• 5 Band Coverage (850MHz, 900MHz, 1.8GHz, 1.9GHz, 2.1GHz)

• Communication Mode: GSM, EGSM, DCS, PCS, WCDMA

• Main data record includes:

      UTC date & time, GPS position, GPS altitude, speed, Heading, DOP,

      battery voltage current

• Currently used species :  Pigeon, Kestrel, Sparrowhawk, Teal, Oystercatcher, 

      Whimbrel, Crow,Wigeon, Mandarin Duck, Curlew